If you're interested in the 74HC4067 16-Channel Analog Multiplexer Demultiplexer and how it can be controlled with the Arduino, check out our new tutorial:http://tronixstuff.com/2013/08/05/part-review-74hc4067-16-channel-analog-multiplexerdemultiplexer/

A couple of Arduino tutorials at http://tronixstuff.com/tutorials - My Arduino book - http://nostarch.com/arduino. Please don't ask for help via direct message - use the forum!